How does the radiator fan in a car work?
The radiator fan is positioned between the radiator and the engine, and is in charge of cooling the car. These cooling radiator fans are especially helpful when your car is moving too slow to obtain external airflow, or when you are stationary, and air can’t move through the grille.
When to turn off the thermo fan in a car?
No point having fans continue to run after the engine is shut down, not enough coolant will circulate through the engine to make an appreciable difference. If you’re concerned about track use, simply idle the engine for 3 minutes after a run/race while you check the car over. Lift the bonnet and let hot air dissipate from the engine bay.
How does a water thermo fan cool an engine?
For a radiator to cool an engine the water available from it must be below the temperature you want to run the engine at . Basically the water thermostat regulates the engine temperature but only if it can let cooler water in than the block and head have inside them . If the water coming in is the same temp then the engine temp will rise .
When does a car cooling fan turn on?
The cooling fans are designed to turn on once a specific temperature has been met inside of your vehicle, or certain conditions have been reached. If the cooling fan is failing or damaged, the engine temperature will continue to rise, and eventually overheat.
What does the thermo switch on a Honda radiator do?
If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot.
How does a radiator fan work when the AC is on?
The electric radiator cooling fan assembly is controlled by a thermoswitch located in the side of the radiator. At higher coolant temperatures, the switch closes to start the cooling fans. Any time the coolant temperature rises to higher than normal levels, the fan will start and continue to run until coolant temperature returns to a normal range.
How can I make my Honda radiator fan work?
Place one end of a fused jumper wire on one of the relay’s control terminals. Place the other end of the fused jumper wire on the car’s positive (red) terminal of the battery. Then, touch one end of a regular jumper wire to the other relay’s control terminal. Ground the other end of the regular jumper wire to the vehicle.
When do you turn on the engine cooling fan?
So, extra cooling is not needed, when a cold engine is first started. As a result, the engine cooling fan, does not come on until the engine reaches, normal operating temperature. The fan will then cycle on and off as needed, to maintain the proper coolant temperature.